Patents by Inventor Piet van Berkum

Piet van Berkum has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus for assessing the weld in belt layers for radial pneumatic tires
    Patent number: 4842413
    Abstract: Apparatus for assessing the weld in a belt layer for a radial pneumatic tire in which the belt layer has been disposed onto a rotary drum, comprising an apparatus for directing at least one laser beam towards the drum and the belt layer, said laser beam being directed obliquely with respect to the perpendicular on the belt layer and the drum, and a camera for viewing the position of the projection of the laser beam on the drum and the belt layer.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: June 27, 1989
    Assignee: VMI EPE Holland B.V.
    Inventors: Johannes A. M. Kuijpers, Piet van Berkum, Henk Huisman